ACTIVE TRANSPORT Flashcards

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1
Q

FANCY DEFINITION OF ACTIVE TRANSPORT

A

ACTIVE TRANSPORT IS THE MOVEMENT OF PARTICLES AGAINST A CONCENTRATION GRADIENT, USING ENERGY RELEASED DURING RESPIRATION

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2
Q

ACTIVE TRANSPORT, LIKE DIFFUSION AND OSMOSIS IS USED TO (…)

A

MOVE SUBSTANCES IN AND OUT OF CELLS

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3
Q

EXAMPLE OF ACTIVE TRANSPORT

A

IN THE DIGESTIVE SYSTEM WHEN THERE IS A LOW CONCENTRATION OF NUTRIENTS IN THE GUT, BUT A HIGH CONCENTRATION OF NUTRIENTS IN THE BLOOD

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4
Q

HOW IS ACTIVE TRANSPORT ALSO USED IN PLANTS

A

ITS HOW TTHEY GET MINERALS FROM THE SOIL (LOWER CONCENTRATION) INTO THEIR ROOT HAIR CELLS (HIGHER MINERAL CONCENTRATION)

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5
Q

WHEN THERES A HIGHER CONCENTRATION OF NUTRIENTS IN THE GUT…

A

THEY DIFFUSE NATURALLY INTO THE BLOOD

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6
Q

WHEN THERE IS A LOWER CONCENTRATION OF NUTRIENTS INN THE GUT THAN THERE IS THE BLOOD…

A

THE CONCENTRATION GRADIENT IS THE WRONG WAY

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7
Q

ACTIVE TRANSPORT ALLOWS NUTRIENTS TO BE TAKEN INTO THE BLOOD, DESPITE THE FACT THAT…

A

THE CONCENTRATION GRADIENT IS THE WRONG WAY

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8
Q

ACTIVE TRANSPORT NEEDS (…) FROM (…) TO MAKE IT WORK

A

ENERGY FROM RESPIRATION

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9
Q

WHAT ARE THE FOUR FACTORS THAT AFFECT THE MOVEMENT OF SUBSTANCES

A

1) SURFACE AREA
2) DISTRANCE
3) TEMPERATURE
4) CONCENTRATION GRADIENT

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10
Q

WHY DOES SURFACE AREA AFFECT THE MOVEMENT OF SUBSTANCES

A

THE RATE OF DIFFUSION, OSMOSIS AND ACTIVE TRANSPORT IS HIGHER IN CELLS WITH A LARGER SURFACE AREA TO VOLIUME RATIO, THIS MEANS THE SMALLER CELL HAS A LARFGER SURFACE AREA TO VOLUME RATIO

THE SMALLER THE CELL, THE LARGER THE SURFACE ARE TO VOLUME RATIO, SO, SUBSTANCES WOULD MOVE IN AND OUT OF THE CELL FASTER

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11
Q

WHY DOES DISTANCE AFFECT THE MOVEMENT OF SUBSTANCES

A

IFSUBSTANCES HAVE A SHORT DISTANCE TO MOVE, THEY WILL MOVE IN AND OUT FASTER

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12
Q

WHY DOES TEMPERATURE AFFECT THE MOVEMENT OF SUBSTANCES

A

AS PARTICLES IN SUBSTANCES GET WARMER THEY HAVE MORE ENERGY- SO THEY MOVE FASTER

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13
Q

WHY DOES CONCENTRATION GRADIENT AFFECT THE MOVEMENT OF SUBSTANCES

A

SUBSTANCES MOVE IN AND OUT OF A CELL IF THERES A BIG DIFFERENCE IN CONCENTRATION BETWEEN THRE INSIDE AND THE OUTSIDE OF THE CELL- SO IT INCRREASES THE RATE OF DIFFUSION AND OSMOSIS BUT NOT ACTIVE TRANSPORT

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